30666101312729 has 4 divisors (see below), whose sum is σ = 30666116194980. Its totient is φ = 30666086430480.

The previous prime is 30666101312719. The next prime is 30666101312831. The reversal of 30666101312729 is 92721310166603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27403916265625 + 3262185047104 = 5234875^2 + 1806152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30666101312729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30666101312719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3734942 + ... + 8676519.

It is an arithmetic number, because the mean of its divisors is an integer number (7666529048745).

Almost surely, 2^{30666101312729} is an apocalyptic number.

It is an amenable number.

30666101312729 is a deficient number, since it is larger than the sum of its proper divisors (14882251).

30666101312729 is a wasteful number, since it uses less digits than its factorization.

30666101312729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14882250.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 30666101312729 in words is "thirty trillion, six hundred sixty-six billion, one hundred one million, three hundred twelve thousand, seven hundred twenty-nine".